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在本地区，樟子松种子园雄花出现在5月上、中旬，长白落叶松在4月中、下旬，雌花滞后于雄花3-5天，观察到在地理纬度相差多达6°情况下，樟子松各产地花期同步；樟子松种子园在10年生以前，需进行人工辅助授粉；雌、雄花在母树不同方位和不同层次上表现出光照强的东南和中、上层的部位开花结实多；优树产地问及其无性系间，在结实株率、雌雄花数量、比例、座果率及球果产量等方面均有极显著差异，这是影响种子园产量的内在因素；选择结实优良无性系，种子园提高种子产量34．3％-163％。
In this area, the male seedling of Pinus sylvestris var. Mongolica appears in May and the middle is long. In the middle and late April, the female lag flower lags 3-5 days in male flowers. It is observed that at the difference of geographical latitude up to 6 °, Seedlings of Pinus sylvestris are synchronized in their flowering periods. Before 10-year-old seedlings of Pinus sylvestris var. Mongolica need artificial pollination, female and male flowers show strong light and southeast, middle and upper parts in different orientations and levels of the mother tree There was a significant difference in the yield of stamen, the number of male and female flowers, the ratio of stamen, fruit yield per plant, and the yield of coniferous tree among the clones of the elite trees and their clones. This was the intrinsic factor that affected the yield of the seed orchard. Clones, seed orchard to increase seed yield 34.3% -163%.